Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/42140
Title: Backward erosion testing : Magnolia Levee
Authors: Montalvo-Bartolomei, Axel M.
Robbins, Bryant A.
Medley, Erica A.
Breland, Benjamin R.
Keywords: Backward erosion piping
Laboratory testing
Seepage
Erosion
Internal erosion
Internal erosion
Dams
Flood control
Levees
Piping--Erosion
Levees--Erosion
Flumes--Testing
Magnolia (Ohio)
Publisher: Geotechnical and Structures Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Technical Report (Engineer Research and Development Center (U.S.)) ; no. ERDC/GSL TR-21-34
Abstract: Using a confined flume device, an experimental study investigated the critical horizontal gradient of soils obtained from a site identified as potentially vulnerable to backward erosion piping (BEP). Tests were conducted on glacial outwash material obtained from a sand and gravel quarry in the vicinity of Magnolia Levee in the community of Magnolia, OH. The two bulk samples collected from the quarry had similar grain-size distributions, grain roundness, and depositional environments as the foundation materials beneath the levee. Samples were prepared at various densities and subjected to gradual increases of flow in a wooden flume with an acrylic top until BEP was observed. The critical average horizontal gradient ranged from 0.21 to 0.30 for a bulk sample with a coefficient of uniformity of 1.6, while tests conducted on a bulk sample with a coefficient of uniformity of 2.5 yielded critical average horizontal gradients of 0.31 to 0.36. The critical average gradients measured during these tests compared favorably to values in the literature after applying adjustments according to Schmertmann’s method.
Description: Magnolia (Ohio)
Gov't Doc #: ERDC/GSL TR-21-34
Rights: Approved for Public Release; Distribution is Unlimited
URI: https://hdl.handle.net/11681/42140
http://dx.doi.org/10.21079/11681/42140
Appears in Collections:Technical Report

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